Rubber ring 1)Material:Natural rubber,silicone 2)Size and colour:As per request ... .Item Name:Rubber ring 2.Material:Naturalrubber,silicone,viton,EPDM,nitrile,neoprene,HNBR,NBR+PVC,SBR,IR,IIR(butyI rubber),CR(neoprene ... quality.Provided Service:1) Rubber Injection Molding2) Rubber Transfer Molding3) Rubber Compression Molding4) Rubber to Metal Molding5) Custom Rubber Molding6) Engineering and Design